This is a 4 generation branch.
1-Thomas McGahan +Viola Wheland |--2-Thomas McGahan | +Maureen | |--3-Jennifer McGahan | | +Brian Koon | | |--4-Luke McGahan Koon | | |--4-Patrick McGahan Koon | |--3-Dennis McGahan |--2-David McGahan | +Andrea | |--3-Brendan McGahan | | +Unknown | | |--4-? McGahan | |--3-Devin McGahan | |--3-Colin McGahan |--2-Mary McGahan | +Ken | |--3-Mary Ann McGahan | | +Patrick McNicholas | | |--4-Liam McNicholas | | |--4-Riley McNicholas | |--3-Michael |--2-Joseph McGahan | +Dianne |--2-James McGahan | +Cindy | |--3-Joshua McGahan | |--3-Aaron McGahan |--2-John McGahan +Unknown |--3-William McGahan b. 20 Dec 1985 |--3-Sean McGahan
McGahan Branch 02 – Massachusetts, USA
This is a 4 generation branch.
Descendants of Thomas McGahan
1-Thomas McGahan +Viola Wheland |--2-Thomas McGahan | +Maureen | |--3-Jennifer McGahan | | +Brian Koon | | |--4-Luke McGahan Koon | | |--4-Patrick McGahan Koon | |--3-Dennis McGahan |--2-David McGahan | +Andrea | |--3-Brendan McGahan | | +Unknown | | |--4-? McGahan | |--3-Devin McGahan | |--3-Colin McGahan |--2-Mary McGahan | +Ken | |--3-Mary Ann McGahan | | +Patrick McNicholas | | |--4-Liam McNicholas | | |--4-Riley McNicholas | |--3-Michael |--2-Joseph McGahan | +Dianne |--2-James McGahan | +Cindy | |--3-Joshua McGahan | |--3-Aaron McGahan |--2-John McGahan +Unknown |--3-William McGahan b. 20 Dec 1985 |--3-Sean McGahan